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If you want to print several images on your site, you must assign array of those images to smarty variable. Then, you can iterate over this array in smarty and show img tags for each image. Rember about good path: {foreach from=$sm_photos item=item} <img src="/content/photophoto/1/{$item.file}"> {/foreach} If your path will not target image file, you can get 404 error, but typically image will be just hidden

Often you need to get the last element of PHP array. This is easy to achieve with using count() function, wich counts all elements in array. Because PHP arrays are indexed from 0, you must remeber to get "count()-1" element of an array, not "count()" element: $exampleArray = array( 3,6,8,11,14 ); $lastElement = $array[ count($exampleArray) - 1]; echo $lastElement; // prints 14 This is the obvious way for some begginer developers. But more experienced developers will know, that there is a function defined especially for this purpose: echo end( $exampleArray ); // prints 14 Because this function will move internal array pointer to the end, you can reset it if you are currently iterating over this orray, for example: reset( $exampleArray ); // prints 14 If you are afraid about non set array, or set as other type than array, you can use function is_array() to check if this variable is defined as array. You can also get a last key of an array in several ways: echo ...

SMARTY is a very good template engine that helps you decompose application view and model. If you want to create a SMARTY foreach loop, you need to have assigned array first. If you want only to present array values, then it can be a usual PHP array without special keys. But SMARTY foreach, same as foreach in PHP, can present keys for array items. The basic construction of foreach loop in smarty, together with PHP array assigment to present in view, you can see below: // In PHP: $array = new array( 'key1' => 'val1' , 'key2' => 'val2' ); $smarty->assign('someAssignedArray' , $array ); // In SMARTY: {foreach from=$someAssignedArray key=keyOfItem item=itemValue} The key of this item is: {$keyOfItem}<br> The value of this item is: {$itemValue}<br> {/foreach} As you can see, we have to have defined array first. Example above shows custom keyed array, but this array can also have standarized default keys like 0,1,2,3,4 etc. ...

To get last element of an array just use end() function. First idea can by get a index at count()-1 but remember that php arrays are associative arrays, so you can grab last element just by number. $lastElement = end($array); As simple as you see. It works even if your indexes are strings like 'name','surname' etc.

To count elements and grab size of an array in php just use a count function: $elementsNumber = count( $array ); This will return a number of elements that are set in array

This tutorial will show you how to get a random element from an array in PHP. We will use mt_rand function and count to determine minimal and maximal index of a array. Remeber that arrays are indexed from 0, so if you have a ten elements array, the elements have indexes from 0 to 9. So, we need a random number that will by at least 0 but smaller than 10. Wi will user mt_rand function te generate that number. Se example how to use count and mt_rand to get random element from an array: $array = array( 1,2,3,4,5 ); echo $array[mt_rand(0,count($array)-1)]; As you can see we have to substract 1 from the size of an array. Also we use faster and better function mt_rand, because rand is slower and less randomness.

You can simple show entire contents of an array by callind print_r function: print_r($theArray); $arrayContents = print_r($theArray,true); Second example show how you can grab output to a variable to parse it or store somewhere (lika a file)

If you have a PHP array and wants to add element to it, you can do it just in this way: $myArray[] = 'new element'; This will add element to php array at its end

If you want to random order of elements in your php array, use shuffle function: $somethings = array(); $somethings[0] = "element1"; $somethings[1] = "element2"; $somethings[2] = "element3"; shuffle( $somethins ); Notice that this will modify that array wich you put as a argument (pass by reference)

If you want how to add or append element to a PHP array, see this code snippet: $somethings = array(); $somethings[] = "element"; // append as last element $somethings[4] = "other element"; $somethings['thekey'] = "some other element";

If you have bad experience with making inputs named like cat1,cat2,cat3, there is a way to post to php custom amount of elements within the same field name. If you add [] to your field name, this value will be posted to PHP script as array of values, and you can traverse array easily: Category 1 Category 1 Category 1 // in php: foreach( $_POST['selectedcategories'] as $cat ) { echo "User selected $cat ! "; } Of course, you can generate inputs by php from some source selecion model

You can print a array contents like in php print_r() function in smarty tempalte. The common mistake is to forget about second print_r parametr for returning it's output. This parameter have to be set to true. If you forget to set it to true, your array contents propably will be somewhere at begining of a content. This is the solution: {$myArray|@print_r:true} Notice the @ symbol that provides parsing argument as array, not as string.

You can merge all elements of two and more arrays into one array by array_merger func: $summaricArray = array_merge( $firstPartArray , $secondPartArray ); This results in all elements from both arrays in summaricArray

Use explode function for this job: $names = 'John,Margaret,Thomas'; $namesArray = explode( ',' , $names ); echo $namesArray[0]; echo $namesArray[1]; echo $namesArray[2]; You can also use a character sequence to split string like a "splitplace"